import com.sun.xml.internal.ws.api.model.wsdl.WSDLOutput;

public class Abnormal {
    public static void main(String[] args) {
        String tst="ds/ds/f/g/g /";
        String[] test=tst.split("/");
        for (String s:test){
            System.out.println(s);
        }
        String jq=tst.substring(3);
        System.out.println(jq);
        StringBuilder s=new StringBuilder();
        StringBuilder o=(StringBuilder) s.append(3.14);
        System.out.println(o);
    }

    private static void testMethod(){

        System.out.println("testMethod");

    }

    public static void main1(String[] args) {

        ((Abnormal)null).testMethod();

    }
}